Docker, Docker-AIO: private registry, data volumes set from .env

Images now default to the registry 10.2.1.10:5500/admin instead of
ghcr.io/dariuszjaniak, in the compose files, the .env examples and the
READMEs.

Each data volume's source comes from .env: WARP_DATA_VOLUME,
WARP_POSTGRES_VOLUME, SEAWEED_DATA_VOLUME and SEAWEED_ADMIN_VOLUME.
Empty keeps the named volume; a host path bind-mounts that directory,
which must be writable by UID 10001 where the homeserver or the AIO
container uses it. Each .env example lists the ones its compose file
mounts.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

Docker/docker-compose.postgresql.yml

@@ -26,7 +26,7 @@ services:
       # C sorts by byte, which is what room and event IDs are compared by.
       POSTGRES_INITDB_ARGS: --encoding=UTF8 --lc-collate=C --lc-ctype=C
     volumes:
-      - postgres-data:/var/lib/postgresql/data
+      - ${WARP_POSTGRES_VOLUME:-postgres-data}:/var/lib/postgresql/data
     healthcheck:
       test: ["CMD-SHELL", "pg_isready -U warp -d warp"]
       interval: 5s
@@ -52,7 +52,7 @@ services:
       WARP_DB_DRIVER: postgres
       WARP_DB_CONNECTION_STRING: postgres://warp:${WARP_POSTGRES_PASSWORD:-warp}@postgres:5432/warp?sslmode=disable
     volumes:
-      - warp-data:/data
+      - ${WARP_DATA_VOLUME:-warp-data}:/data
     ports:
       - "${WARP_PORT:-8008}:8008"